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Topics - tedburn

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Cold Hardy Citrus / How to overwinter potted Poncirus
« on: November 22, 2020, 12:34:08 PM »
Hello Citrus Experts,
I have some smaller Poncirus in pots which I want to take as rootstock for grafting next year.
The pot diameters are about 8 cm in diameter and the plants are about 20 to 30 cm high.
Now I ask me if they loose hardiness if I overwinter them in my greenhause which I keep
between 0 and 1 Degree Celsius (32 and 33,8 degree Fahrenheit).
Otherwise I fear that the roots of the Poncirus get freeze damaged if I let them unprotected on my veranda.
Similar question concerning some potted cold hardy plants as Thomasville, Bloomsweet, Ichang Lemon and Changsha mandarin with pot diameter about 15 cm and hights of about 50cm, which I want to plant in ground next early summer. Do they loose hardiness if they go to the greenhouse in Winter ?
Currently they still stand beside the greenhouse with fleece protection.
Thanks for your experiences.
Best regards Frank

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